diff options
Diffstat (limited to 'qemu/roms/SLOF/lib/libe1k/e1k.c')
| -rw-r--r-- | qemu/roms/SLOF/lib/libe1k/e1k.c | 1000 |
1 files changed, 0 insertions, 1000 deletions
diff --git a/qemu/roms/SLOF/lib/libe1k/e1k.c b/qemu/roms/SLOF/lib/libe1k/e1k.c deleted file mode 100644 index 4dd7d2eb9..000000000 --- a/qemu/roms/SLOF/lib/libe1k/e1k.c +++ /dev/null @@ -1,1000 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2007, 2011, 2013 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ -/* - * e1000 Gigabit Ethernet Driver for SLOF - * - * Reference: - * PCI/PCI-X Family of Gigabit Ethernet Controllers - * Software Developer's Manual Rev. 3.3, Intel, December 2006 - */ - -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include <byteorder.h> -#include <helpers.h> -#include <netdriver.h> -#include "e1k.h" - -/* - * local defines - ****************************************************************************** - */ -#define E1K_NUM_RX_DESC 128 // do not change -#define E1K_NUM_TX_DESC 128 // do not change -#define E1K_BUF_SIZE 2096 // do not change - -#define NUM_MAC_ADDR 16 // number of mac address register pairs -#define EEPROM_MAC_OFFS 0 // position of mac address in eeprom - -/* - * local types - ****************************************************************************** - */ -typedef struct { - uint32_t m_dev_u32; - uint64_t m_devmsk_u64; - char *m_name; -} e1k_dev_t; - -/* - * e1k common data structures - */ - -/* - * transmit buffer descriptor - */ -typedef struct { - uint64_t m_buffer_u64; - uint16_t m_len_u16; - uint8_t m_cso_u08; - uint8_t m_cmd_u08; - uint8_t m_sta_u08; - uint8_t m_css_u08; - uint16_t m_spe_u16; -} __attribute__ ((packed)) e1k_tx_desc_st; - - -/* - * receive buffer descriptor - */ -typedef struct { - uint64_t m_buffer_u64; - uint16_t m_len_u16; - uint16_t m_csm_u16; - uint8_t m_sta_u08; - uint8_t m_err_u08; - uint16_t m_spe_u16; -} __attribute__ ((packed)) e1k_rx_desc_st; - -/* - * e1k device structure - */ -typedef struct { - /* - * device identification mask - */ - uint64_t m_device_u64; - - /* - * memory mapped base address of NIC - */ - uint64_t m_baseaddr_u64; - - /* - * transmit & receive rings - * must be 16 byte aligned - */ - e1k_tx_desc_st m_tx_ring_pst[E1K_NUM_TX_DESC]; - e1k_rx_desc_st m_rx_ring_pst[E1K_NUM_RX_DESC]; - - /* - * transmit & receive buffers - * must be 16 byte aligned - */ - uint8_t m_tx_buffer_pu08[E1K_NUM_TX_DESC][E1K_BUF_SIZE]; - uint8_t m_rx_buffer_pu08[E1K_NUM_RX_DESC][E1K_BUF_SIZE]; - - /* - * next receive descriptor index - */ - uint32_t m_rx_next_u32; - - /* - * command register storage - */ - uint16_t m_com_r_u16; - - /* - * padding to make the size of the structure a multiple of 16 byte - */ - uint16_t m_pad16_u16; - uint64_t m_pad64_u32; - -} __attribute__ ((packed)) e1k_st; - -/* - * local constants - ****************************************************************************** - */ -#define E1K_82540 ((uint64_t) 0x1) -#define E1K_82541 ((uint64_t) 0x2) -#define E1K_82544 ((uint64_t) 0x4) -#define E1K_82545 ((uint64_t) 0x8) -#define E1K_82546 ((uint64_t) 0x10) -#define E1K_82547 ((uint64_t) 0x20) - -#define IS_82541 ((m_e1k.m_device_u64 & E1K_82541) != 0) -#define IS_82546 ((m_e1k.m_device_u64 & E1K_82546) != 0) -#define IS_82547 ((m_e1k.m_device_u64 & E1K_82547) != 0) - -static const e1k_dev_t e1k_dev[] = { - { 0x1019, E1K_82547, "82547EI/GI Copper" }, - { 0x101A, E1K_82547, "82547EI Mobile" }, - { 0x1010, E1K_82546, "52546EB Copper, Dual Port" }, - { 0x1012, E1K_82546, "82546EB Fiber, Dual Port" }, -/* { 0x101D, E1K_82546, "82546EB Copper, Quad Port" }, */ - { 0x1079, E1K_82546, "82546GB Copper, Dual Port" }, - { 0x107A, E1K_82546, "82546GB Fiber, Dual Port" }, - { 0x107B, E1K_82546, "82546GB SerDes, Dual Port" }, - { 0x100F, E1K_82545, "82545EM Copper" }, - { 0x1011, E1K_82545, "82545EM Fiber" }, - { 0x1026, E1K_82545, "82545GM Copper" }, - { 0x1027, E1K_82545, "82545GM Fiber" }, - { 0x1028, E1K_82545, "82545GM SerDes" }, - { 0x1107, E1K_82544, "82544EI Copper" }, - { 0x1112, E1K_82544, "82544GC Copper" }, - { 0x1013, E1K_82541, "82541EI Copper" }, - { 0x1018, E1K_82541, "82541EI Mobile" }, - { 0x1076, E1K_82541, "82541GI Copper" }, - { 0x1077, E1K_82541, "82541GI Mobile" }, - { 0x1078, E1K_82541, "82541ER Copper" }, - { 0x107C, E1K_82541, "82541PI" }, - { 0x1015, E1K_82540, "82540EM Mobile" }, - { 0x1016, E1K_82540, "82540EP Mobile" }, - { 0x1017, E1K_82540, "82540EP Desktop" }, - { 0x100E, E1K_82540, "82540EM Desktop" }, - { 0 , 0 } -}; - -/* - * local variables - ****************************************************************************** - */ -static e1k_st m_e1k __attribute__ ((aligned(16))); -static long dma_offset; - -/* - * global functions - ****************************************************************************** - */ -int -check_driver(uint16_t vendor_id, uint16_t device_id); - -static int e1k_init(net_driver_t *driver); -static int e1k_term(void); -static int e1k_xmit(char *f_buffer_pc, int f_len_i); -static int e1k_receive(char *f_buffer_pc, int f_len_i); - -/** - * Translate virtual to "physical" address, ie. an address - * which can be used for DMA transfers. - */ -static uint64_t -virt2dma(void *addr) -{ - return (uint64_t)addr + dma_offset; -} - -static void * -dma2virt(uint64_t addr) -{ - return (void *)(addr - dma_offset); -} - -/* - * local inline functions for e1k register access - ****************************************************************************** - */ -static uint32_t -e1k_rd32(uint16_t f_offs_u16) -{ // caution: shall only be used after initialization! - return bswap_32(rd32(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16)); -} - -/* not used so far -static uint16_t -e1k_rd16(uint16_t f_offs_u16) -{ // caution: shall only be used after initialization! - return bswap_16(rd16(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16)); -}*/ - -/* not used so far -static uint8_t -e1k_rd08(uint16_t f_offs_u16) -{ // caution: shall only be used after initialization! - return rd08(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16); -}*/ - -static void -e1k_wr32(uint16_t f_offs_u16, uint32_t f_val_u32) -{ // caution: shall only be used after initialization! - wr32(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16, bswap_32(f_val_u32)); -} - -/* not used so far -static void -e1k_wr16(uint16_t f_offs_u16, uint16_t f_val_u16) -{ // caution: shall only be used after initialization! - wr16(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16, bswap_16(f_val_u16)); -}*/ - -/* not used so far -static void -e1k_wr08(uint16_t f_offs_u16, uint8_t f_val_u08) -{ // caution: shall only be used after initialization! - wr08(m_e1k.m_baseaddr_u64 + (uint64_t) f_offs_u16, f_val_u08); -}*/ - -static void -e1k_setb32(uint16_t f_offs_u16, uint32_t f_mask_u32) -{ - uint32_t v; - - v = e1k_rd32(f_offs_u16); - v |= f_mask_u32; - e1k_wr32(f_offs_u16, v); -} - -/* not used so far -static void -e1k_setb16(uint16_t f_offs_u16, uint16_t f_mask_u16) -{ - uint16_t v; - v = e1k_rd16(f_offs_u16); - v |= f_mask_u16; - e1k_wr16(f_offs_u16, v); -}*/ - -/* not used so far -static void -e1k_setb08(uint16_t f_offs_u16, uint8_t f_mask_u08) -{ - uint8_t v; - v = e1k_rd08(f_offs_u16); - v |= f_mask_u08; - e1k_wr08(f_offs_u16, v); -}*/ - -static void -e1k_clrb32(uint16_t f_offs_u16, uint32_t f_mask_u32) -{ - uint32_t v; - - v = e1k_rd32(f_offs_u16); - v &= ~f_mask_u32; - e1k_wr32(f_offs_u16, v); -} - -/* not used so far -static void -e1k_clrb16(uint16_t f_offs_u16, uint16_t f_mask_u16) -{ - uint16_t v; - - v = e1k_rd16(f_offs_u16); - v &= ~f_mask_u16; - e1k_wr16(f_offs_u16, v); -}*/ - -/* not used so far -static void -e1k_clrb08(uint16_t f_offs_u16, uint8_t f_mask_u08) -{ - uint8_t v; - v = e1k_rd08(f_offs_u16); - v &= ~f_mask_u08; - e1k_wr08(f_offs_u16, v); -}*/ - -static int32_t -e1k_eep_rd16(uint8_t f_offs_u08, uint16_t *f_data_pu16) -{ - uint32_t i; - uint32_t v; - int32_t done_shft; - int32_t addr_shft; - - if(IS_82541 || IS_82547) { - addr_shft = 2; - done_shft = 1; - } else { - addr_shft = 8; - done_shft = 4; - } - - /* - * initiate eeprom read - */ - e1k_wr32(EERD, ((uint32_t) f_offs_u08 << addr_shft) | // address - BIT32(0)); // start read - - /* - * wait for read done bit to be set - */ - i = 1000; - v = e1k_rd32(EERD); - while ((--i) && - ((v & BIT32(done_shft)) == 0)) { - SLOF_msleep(1); - v = e1k_rd32(EERD); - } - - /* - * return on error - */ - if ((v & BIT32(done_shft)) == 0) { - return -1; - } - - /* - * return data - */ - *f_data_pu16 = (uint16_t) ((v >> 16) & 0xffff); - - return 0; -} - -/* - * ring initialization - */ -static void -e1k_init_receiver(void) -{ - uint32_t i; - uint64_t addr; - - /* - * disable receiver for initialization - */ - e1k_wr32(RCTL, 0); - - /* - * clear receive desciptors and setup buffer pointers - */ - for (i = 0; i < E1K_NUM_RX_DESC; i++) { - memset((uint8_t *) &m_e1k.m_rx_ring_pst[i], 0, - sizeof(e1k_rx_desc_st)); - mb(); - - m_e1k.m_rx_ring_pst[i].m_buffer_u64 = - bswap_64(virt2dma(&m_e1k.m_rx_buffer_pu08[i][0])); - } - - /* - * initialize previously received index - */ - m_e1k.m_rx_next_u32 = 0; - - /* - * setup the base address and the length of the rx descriptor ring - */ - addr = virt2dma(&m_e1k.m_rx_ring_pst[0]); - e1k_wr32(RDBAH, (uint32_t) ((uint64_t) addr >> 32)); - e1k_wr32(RDBAL, (uint32_t) ((uint64_t) addr & 0xffffffff)); - e1k_wr32(RDLEN, E1K_NUM_RX_DESC * sizeof(e1k_rx_desc_st)); - - /* - * setup the rx head and tail descriptor indices - */ - e1k_wr32(RDH, 0); - e1k_wr32(RDT, E1K_NUM_RX_DESC - 1); - - /* - * setup the receive delay timer register - */ - e1k_wr32(RDTR, 0); - - /* - * setup the receive control register - */ - e1k_wr32(RCTL, BIT32( 1) | // enable receiver - BIT32( 4) | // enable multicast reception - BIT32(15)); // broadcast accept mode - // packet size 2048 - // no buffer extension -} - -static void -e1k_init_transmitter(void) -{ - uint32_t i; - uint64_t addr; - - /* - * clear transmit desciptors and setup buffer pointers - */ - for (i = 0; i < E1K_NUM_TX_DESC; i++) { - memset((uint8_t *) &m_e1k.m_tx_ring_pst[i], 0, - sizeof(e1k_tx_desc_st)); - mb(); - - m_e1k.m_tx_ring_pst[i].m_buffer_u64 = - bswap_64(virt2dma(&m_e1k.m_tx_buffer_pu08[i][0])); - } - - /* - * setup the base address and the length of the tx descriptor ring - */ - addr = virt2dma(&m_e1k.m_tx_ring_pst[0]); - e1k_wr32(TDBAH, (uint32_t) ((uint64_t) addr >> 32)); - e1k_wr32(TDBAL, (uint32_t) ((uint64_t) addr & 0xffffffff)); - e1k_wr32(TDLEN, E1K_NUM_TX_DESC * sizeof(e1k_tx_desc_st)); - - /* - * setup the rx head and tail descriptor indices - */ - e1k_wr32(TDH, 0); - e1k_wr32(TDT, 0); - - /* - * initialize the transmit control register - */ - e1k_wr32(TCTL, BIT32(1) | // enable transmitter - BIT32(3) | // pad short packets - ((uint32_t) 0x0f << 4) | // collision threshhold - ((uint32_t) 0x40 << 12)); // collision distance -} - -static int32_t -e1k_mac_init(uint8_t *f_mac_pu08) -{ - uint32_t l_ah_u32; - uint32_t l_al_u32; - uint32_t i; - uint32_t v; - - /* - * Use MAC address from device tree if possible - */ - for (i = 0, v = 0; i < 6; i++) { - v += (uint32_t) f_mac_pu08[i]; - } - - if (v != 0) { - /* - * use passed mac address for transmission to nic - */ - l_al_u32 = ((uint32_t) f_mac_pu08[3] << 24); - l_al_u32 |= ((uint32_t) f_mac_pu08[2] << 16); - l_al_u32 |= ((uint32_t) f_mac_pu08[1] << 8); - l_al_u32 |= ((uint32_t) f_mac_pu08[0] << 0); - l_ah_u32 = ((uint32_t) f_mac_pu08[5] << 8); - l_ah_u32 |= ((uint32_t) f_mac_pu08[4] << 0); - } else { - /* - * read mac address from eeprom - */ - uint16_t w[3]; // 3 16 bit words from eeprom - - for (i = 0; i < 3; i++) { - if (e1k_eep_rd16(EEPROM_MAC_OFFS + i, &w[i]) != 0) { - printf("Failed to read MAC address from EEPROM!\n"); - return -1; - } - } - - /* - * invert the least significant bit for 82546 dual port - * if the second device is in use (remember word is byteswapped) - */ - if ((IS_82546) && - ((e1k_rd32(STATUS) & BIT32(2)) != 0)) { - w[2] ^= (uint16_t) 0x100; - } - - /* - * store mac address for transmission to nic - */ - l_ah_u32 = ((uint32_t) w[2] << 0); - l_al_u32 = ((uint32_t) w[1] << 16); - l_al_u32 |= ((uint32_t) w[0] << 0); - - /* - * return mac address - * mac address in eeprom is stored byteswapped - */ - f_mac_pu08[1] = (uint8_t) ((w[0] >> 8) & 0xff); - f_mac_pu08[0] = (uint8_t) ((w[0] >> 0) & 0xff); - f_mac_pu08[3] = (uint8_t) ((w[1] >> 8) & 0xff); - f_mac_pu08[2] = (uint8_t) ((w[1] >> 0) & 0xff); - f_mac_pu08[5] = (uint8_t) ((w[2] >> 8) & 0xff); - f_mac_pu08[4] = (uint8_t) ((w[2] >> 0) & 0xff); - } - - /* - * insert mac address in receive address register - * and set AV bit - */ - e1k_wr32(RAL0, l_al_u32); - e1k_wr32(RAH0, l_ah_u32 | BIT32(31)); - - /* - * clear remaining receive address registers - */ - for (i = 1; i < NUM_MAC_ADDR; i++) { - e1k_wr32(RAL0 + i * sizeof(uint64_t), 0); - e1k_wr32(RAH0 + i * sizeof(uint64_t), 0); - } - - return 0; -} - - -/* - * interface - ****************************************************************************** - */ - -/* - * e1k_receive - */ -static int -e1k_receive(char *f_buffer_pc, int f_len_i) -{ - uint32_t l_rdh_u32 = e1k_rd32(RDH); // this includes needed dummy read - e1k_rx_desc_st *rx; - int l_ret_i; - - #ifdef E1K_DEBUG - #ifdef E1K_SHOW_RCV_DATA - int i; - #endif - #endif - - /* - * check whether new packets have arrived - */ - if (m_e1k.m_rx_next_u32 == l_rdh_u32) { - return 0; - } - - /* - * get a pointer to the next rx descriptor for ease of use - */ - rx = &m_e1k.m_rx_ring_pst[m_e1k.m_rx_next_u32]; - - /* - * check whether the descriptor done bit is set - */ - if ((rx->m_sta_u08 & 0x1) == 0) { - return 0; - } - - /* - * get the length of the packet, throw away checksum - */ - l_ret_i = (int) bswap_16(rx->m_len_u16) - (int) 4; - - /* - * copy the data - */ - memcpy((uint8_t *) f_buffer_pc, dma2virt(bswap_64(rx->m_buffer_u64)), - (size_t) l_ret_i); - - #ifdef E1K_DEBUG - #if defined(E1K_SHOW_RCV) || defined(E1K_SHOW_RCV_DATA) - printf("e1k: %d bytes received\n", l_ret_i); - #endif - - #ifdef E1K_SHOW_RCV_DATA - for (i = 0; i < l_ret_i; i++) { - - if ((i & 0x1f) == 0) { - printf("\n "); - } - - printf("%02X ", f_buffer_pc[i]); - } - - printf("\n\n"); - #endif - #endif - - /* - * clear descriptor for reusage, but leave buffer pointer untouched - */ - memset((uint8_t *) &rx->m_len_u16, 0, - sizeof(e1k_rx_desc_st) - sizeof(uint64_t)); - mb(); - - /* - * write new tail pointer - */ - e1k_wr32(RDT, m_e1k.m_rx_next_u32); - - /* - * update next receive index - */ - m_e1k.m_rx_next_u32 = (m_e1k.m_rx_next_u32 + 1) & (E1K_NUM_RX_DESC - 1); - - return l_ret_i; -} - -static int -e1k_xmit(char *f_buffer_pc, int f_len_i) -{ - uint32_t l_tdh_u32 = e1k_rd32(TDH); - uint32_t l_tdt_u32 = e1k_rd32(TDT); - uint32_t l_pre_u32 = (l_tdh_u32 + (E1K_NUM_TX_DESC - 1)) & - (E1K_NUM_TX_DESC - 1); - e1k_tx_desc_st *tx; - #if defined(E1K_DEBUG) && defined(E1K_SHOW_XMIT_DATA) - int i; - #endif - - /* - * check for available buffers - */ - if (l_pre_u32 == l_tdt_u32) { - return 0; - } - - /* - * get a pointer to the next tx descriptor for ease of use - */ - tx = &m_e1k.m_tx_ring_pst[l_tdt_u32]; - - /* - * copy the data - */ - memcpy(dma2virt(bswap_64(tx->m_buffer_u64)), (uint8_t *) f_buffer_pc, - (size_t) f_len_i); - - /* - * insert length & command flags - */ - tx->m_len_u16 = bswap_16((uint16_t) f_len_i); - tx->m_cmd_u08 = (BIT08(0) | // EOP - BIT08(1)); // IFCS - tx->m_sta_u08 = 0; - mb(); - - /* - * update tail index - */ - l_tdt_u32 = (l_tdt_u32 + 1) & (E1K_NUM_TX_DESC - 1); - e1k_wr32(TDT, l_tdt_u32); - - #ifdef E1K_DEBUG - #if defined(E1K_SHOW_XMIT) || defined(E1K_SHOW_XMIT_DATA) - printf("e1k: %d bytes transmitted\n", bswap_16(tx->m_len_u16)); - #endif - - #ifdef E1K_SHOW_XMIT_DATA - for (i = 0; i < bswap_16(tx->m_len_u16); i++) { - - if ((i & 0x1f) == 0) { - printf("\n "); - } - - f_buffer_pc = dma2virt(bswap_64(tx->m_buffer_u64)); - printf("%02X ", f_buffer_pc[i]); - } - - printf("\n\n"); - #endif - #endif - - return f_len_i; -} - -int -check_driver(uint16_t vendor_id, uint16_t device_id) -{ - uint64_t i; - - /* - * checks whether the driver is handling this device - * by verifying vendor & device id - * vendor id 0x8086 == Intel - */ - if (vendor_id != 0x8086) { - #ifdef E1K_DEBUG - printf("e1k: netdevice with vendor id %04X not supported\n", - vendor_id); - #endif - return -1; - } - - for (i = 0; e1k_dev[i].m_dev_u32 != 0; i++) { - if (e1k_dev[i].m_dev_u32 == (uint32_t) device_id) { - break; - } - } - - if (e1k_dev[i].m_dev_u32 == 0) { - #ifdef E1K_DEBUG - printf("e1k: netdevice with device id %04X not supported\n", - device_id); - #endif - return -1; - } - - /* - * initialize static variables - */ - m_e1k.m_device_u64 = e1k_dev[i].m_devmsk_u64; - m_e1k.m_baseaddr_u64 = 0; - - // success - #ifdef E1K_DEBUG - printf("e1k: found device %s\n", e1k_dev[i].m_name); - #endif - - return 0; -} - -static int -e1k_init(net_driver_t *driver) -{ - uint32_t i; - uint32_t v; - - if (!driver) - return -1; - - #ifdef E1K_DEBUG - printf("\ne1k: initializing\n"); - #endif - - dma_offset = SLOF_dma_map_in(&m_e1k, sizeof(m_e1k), 0); - #ifdef E1K_DEBUG - printf("e1k: dma offset: %lx - %lx = %lx\n", dma_offset, (long)&m_e1k, - dma_offset - (long)&m_e1k); - #endif - dma_offset = dma_offset - (long)&m_e1k; - - /* - * setup register & memory base addresses of NIC - */ - //m_e1k.m_baseaddr_u64 = baseaddr; - #ifdef E1K_DEBUG - printf("e1k: base address register = 0x%llx\n", m_e1k.m_baseaddr_u64); - #endif - - /* - * e1k hardware initialization - */ - - /* - * at first disable all interrupts - */ - e1k_wr32(IMC, (uint32_t) ~0); - - /* - * check for link up - */ - #ifdef E1K_DEBUG - printf("e1k: checking link status..\n"); - #endif - - i = 50; - v = e1k_rd32(STATUS); - while ((--i) && - ((v & BIT32(1)) == 0)) { - SLOF_msleep(100); - v = e1k_rd32(STATUS); - } - - if ((v & BIT32(1)) == 0) { - #ifdef E1K_DEBUG - printf("e1k: link is down.\n"); - printf(" terminating.\n"); - #endif - - return -1; - } - - #ifdef E1K_DEBUG - printf("e1k: link is up\n"); - - switch ((v >> 6) & 0x3) { - case 0: { - printf(" 10 Mb/s\n"); - } break; - case 1: { - printf(" 100 Mb/s\n"); - } break; - case 2: - case 3: { - printf(" 1000 Mb/s\n"); - } break; - } - - if ((v & BIT32(0)) == 0) { - printf(" half-duplex\n"); - } else { - printf(" full-duplex\n"); - } - #endif - - /* - * initialize mac address - */ - #ifdef E1K_DEBUG - printf("e1k: initializing mac address.. "); - #endif - if (e1k_mac_init((uint8_t *)driver->mac_addr) != 0) { - #ifdef E1K_DEBUG - printf("failed.\n"); - printf(" terminating.\n"); - #endif - - return -1; - } - - #ifdef E1K_DEBUG - printf("done.\n"); - printf(" mac address = %02X:%02X:%02X:%02X:%02X:%02X\n", - driver->mac_addr[0], driver->mac_addr[1], driver->mac_addr[2], - driver->mac_addr[3], driver->mac_addr[4], driver->mac_addr[5]); - #endif - - /* - * initialize transmitter - */ - #ifdef E1K_DEBUG - printf("e1k: initializing transmitter.. "); - #endif - e1k_init_transmitter(); - #ifdef E1K_DEBUG - printf("done.\n"); - #endif - - /* - * initialize receiver - */ - #ifdef E1K_DEBUG - printf("e1k: initializing receiver.. "); - #endif - e1k_init_receiver(); - #ifdef E1K_DEBUG - printf("done.\n"); - printf("e1k: initialization complete\n"); - #endif - - driver->running = 1; - - return 0; -} - -static int -e1k_reset(void) -{ - /* - * reset the PHY - */ - e1k_setb32(CTRL, BIT32(31)); - SLOF_msleep(10); - - /* - * reset the MAC - */ - e1k_setb32(CTRL, BIT32(26)); - SLOF_msleep(10); - - return 0; -} - -static int -e1k_term(void) -{ - #ifdef E1K_DEBUG - printf("e1k: shutdown.. "); - #endif - - /* - * disable receiver & transmitter - */ - e1k_wr32(RCTL, 0); - e1k_wr32(TCTL, 0); - SLOF_msleep(10); - - /* - * reset the ring indices - */ - e1k_wr32(RDH, 0); - e1k_wr32(RDT, 0); - e1k_wr32(TDH, 0); - e1k_wr32(TDT, 0); - - /* - * disable receive address - */ - e1k_clrb32(RAH0, BIT32(31)); - - /* - * reset the mac/phy - */ - e1k_reset(); - - /* - * Disable DMA translation - */ - SLOF_dma_map_out((long)virt2dma(&m_e1k), (void *)&m_e1k, (long)sizeof(m_e1k)); - - #ifdef E1K_DEBUG - printf("done.\n"); - #endif - - return 0; -} - -net_driver_t *e1k_open(uint64_t baseaddr) -{ - net_driver_t *driver; - - m_e1k.m_baseaddr_u64 = baseaddr; - driver = SLOF_alloc_mem(sizeof(*driver)); - if (!driver) { - printf("Unable to allocate virtio-net driver\n"); - return NULL; - } - memset(driver, 0, sizeof(*driver)); - - if (e1k_init(driver)) - goto FAIL; - - return driver; - -FAIL: SLOF_free_mem(driver, sizeof(*driver)); - return NULL; - - return 0; -} - -void e1k_close(net_driver_t *driver) -{ - if (driver->running == 0) - return; - - e1k_term(); - driver->running = 0; - SLOF_free_mem(driver, sizeof(*driver)); -} - -int e1k_read(char *buf, int len) -{ - if (buf) - return e1k_receive(buf, len); - return -1; -} - -int e1k_write(char *buf, int len) -{ - if (buf) - return e1k_xmit(buf, len); - return -1; -} - -int e1k_mac_setup(uint16_t vendor_id, uint16_t device_id, - uint64_t baseaddr, char *mac_addr) -{ - if (check_driver(vendor_id, device_id)) - return -1; - - m_e1k.m_baseaddr_u64 = baseaddr; - memset(mac_addr, 0, 6); - - return e1k_mac_init((uint8_t *)mac_addr); -} |